| Port Talbot to Cloverly (Maryland) | 3,501.94 mi (5,635.83 km) |
| Port Talbot to Clovis (California) | 5,207.48 mi (8,380.63 km) |
| Port Talbot to Clovis (New Mexico) | 4,762.65 mi (7,664.75 km) |
| Port Talbot to Clute (Texas) | 4,739.10 mi (7,626.85 km) |
| Port Talbot to Coachella (California) | 5,266.51 mi (8,475.63 km) |
| Port Talbot to Coalinga (California) | 5,266.73 mi (8,475.98 km) |
| Port Talbot to Coamo (Puerto Rico) | 4,075.50 mi (6,558.88 km) |
| Port Talbot to Coatesville (Pennsylvania) | 3,414.86 mi (5,495.69 km) |
| Port Talbot to Cockeysville (Maryland) | 3,470.22 mi (5,584.78 km) |
| Port Talbot to Cocoa (Florida) | 4,165.11 mi (6,703.10 km) |
| Port Talbot to Cocoa Beach (Florida) | 4,161.62 mi (6,697.48 km) |
| Port Talbot to Coconut Creek (Florida) | 4,245.13 mi (6,831.88 km) |
| Port Talbot to Coeur d'Alene (Idaho) | 4,518.72 mi (7,272.18 km) |
| Port Talbot to Cohoes (New York) | 3,210.45 mi (5,166.72 km) |
| Port Talbot to Cold Springs (Nevada) | 5,055.50 mi (8,136.03 km) |
